package AiShopLocation;

public class Main {
    public static void main(String[] args) {
        int number = 10;
        System.out.println("change函数运行前number的值"+number);//是10
        change(number);
        System.out.println("change函数运行后number的值"+number);//是10还是20
    }
    public static void change(int number){
        number = 20;
        System.out.println("change函数里number的值"+number);//是20
    }
}